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Summary of change:
Rather an example of how NOT to do it. We received a home-assembled ECU with a BT-serial (not RS232 but logiclevel serial "fbus") module inside ECU: an unsupported setup (connected wrong so it did not work and prevented VT communications; Disconnecting BT-RS232 => VT communication started to work immediately). * Bluetooth inside a metal case will not work. (see "Faraday cage") * First serial port: when VT is connected PC TX => ECU RX cannot be driven by the BT module, so BT module must be disconnected (this happens when DSUB9 connector is disconnected) ** but the module was connected inside the case to the ISP header, preventing the ST232 chip to drive main processor RX properly. ---- See BroadcastDatastreamAim for '''AIM only (not triggerframe)''', this way ECU => BT module one-way communication should work. '''Second RS232 is preferred''' * It can also '''Possible Solutions:''' * Should we '''provide a BT-RS232 module''' so that it can transmit from outside the metal case ? * or... Should we '''connect 2nd serial TX => BT Module''' (inside the ECU) for AIM comm ? ** might work with ECU endplate removed
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